I have been running benchmarks on DigitalOcean with different droplets in different locations 
When using encryption it's expected to generally have a reduction in throughput. 

image="centos-7-x64" size="s-1vcpu-1gb" region="ams3" 
image="centos-7-x64" size="s-1vcpu-1gb" region="fra1" 

iperf direct-test: 
[ ID] Interval Transfer Bandwidth Retr 
[ 4] 0.00-10.00 sec 959 MBytes 805 Mbits/sec 637 sender 
[ 4] 0.00-10.00 sec 957 MBytes 803 Mbits/sec receiver 

iperf IPSec-test: 
[ ID] Interval Transfer Bandwidth Retr 
[ 4] 0.00-10.00 sec 206 MBytes 173 Mbits/sec 15 sender 
[ 4] 0.00-10.00 sec 206 MBytes 172 Mbits/sec receiver 

iperf WireGuard-test: 
[ ID] Interval Transfer Bandwidth Retr 
[ 4] 0.00-10.00 sec 481 MBytes 404 Mbits/sec 46 sender 
[ 4] 0.00-10.00 sec 478 MBytes 401 Mbits/sec receiver 


Many things can come into play, optimizations, maybe crypto acceleration etc, but that's beyond my expertise. 


From: "Fierascu Vlad" <mythnick@gmail.com> 
To: "cristian c" <cristian.c@istream.today> 
Cc: "wireguard" <wireguard@lists.zx2c4.com> 
Sent: Wednesday, 11 December, 2019 11:09:07 
Subject: Re: Limited speed 100Mbps Down 200Mbps UP 

more info about the server location, client location.... 

Peering might be the answer ! 

regards, 
************************************************ 
Fierascu Vlad 
[ mailto:mythnick@gmail.com | mythnick@gmail.com ] 
[ http://www.mythnick.com/ | www.mythnick.com ] 


În mie., 11 dec. 2019 la 09:15, <cristian.c@istream.today> a scris: 





Hello, 



I have installed Wireguard on multiple location, servers, on each of this server I have 1Gbps link, my problem is that I’m not able to get more that ~100-120Mbps for download and ~200Mbps Upload, any idea why? 



As a server I use CentOS 7 as for “client” I use Windows 10 with latest Wireguard client.. 



Thank you in advance, 

Cristian 


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